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The 37N Low Profile Series provides many standard design features and excellent sound performance when compared with other parallel designs. The 37N offers a compact and economical design that provides excellent performance in the most demanding variable air volume/intermittent fan applications. The fan is mounted at ninety degrees to the primary airflow to provide optimum mixing.





  • Only 11" (279) to 12 1/2" (318) high 20 ga. (1.00) galvanized steel construction.
  • 2 x 20 ga. (1.00) round or rectangular primary air damper with a polyurethane peripheral gasket. 90° rotation, CW   to close. 1/2" (13) dia. plated steel drive shaft. An indicator mark on the end of the shaft shows damper-   position. Damper leakage is less than 2% of nominal flow at 3" w.g. (750 Pa).
  • Round or rectangular 6" (152) deep inlet collars for field duct connection.
  • Multi-point averaging 'Diamond Flow' sensor (pressure independent control only).
  • Access panels on underside of terminal for ease of maintenance and service. 
  • Energy efficient PSC fan motor with thermal overload protection. 
  • Solid state fan speed controller with minimum voltage stop.
  • Motor blower assembly mounted on special 16 ga. (1.6) angles and isolated from casing with rubber isolators.
  • Gasketed backdraft damper mounted on fan discharge prevents primary air from escaping through the fan section   into the ceiling plenum.
  • Hinged door on fan controls enclosure.
  • 1/2" (13) dual density insulation. Exposed edges coated to prevent air erosion. Meets requirements of NFPA
  •   90A and UL 181.
  • Available with electric or hot water supplementary heat.
  • Hot water coils are mounted on induced air inlet of 37NW unit and are designed to accept flanged duct connection.
  • Electric coils are mounted on unit discharge.
  • Single point electrical and/or pneumatic main air connection.
  • Discharge opening designed for flanged duct connection.
  • Full primary air valve low voltage enclosure for factory mounted digital and analog electronic controls.



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